Synthesis of oriented benzimidazole- and benzoxazole-linked covalent organic framework films

Covalent organic frameworks (COFs) are an emerging class of porous two- or three-dimensional polymeric materials with tailorable architectures. Here, we draw inspiration from the structures of rigid one-dimensional (1D) polymers like polybenzimidazole (PBI) and polybenzoxazoles (Zylon), some of the highest strength and thermally-resistant materials to date. While there are many